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A plumbing permit is required for all plumbing work. Only a licensed plumbing contractor who is registered with Baltimore County can apply for a plumbing permit.

View the plumbing and gas fitting permit fees.

Required Documents

A building permit number is required, if applicable, and must be listed on the application.

The applicant will need to know:

  • If the property is connected to public water/sewer or well/septic and if the connection is existing or new
  • The number of fixtures that are new, replace/reconstruct, or removed, for each section on the application

The following documents are required when submitting a plumbing permit application:

  • For an onsite water, sewer/storm application—Site plans with details of onsite work, including lateral connections
  • For a septic system repair or replacement application—septic system permit requirement sheet. Contact Groundwater Management prior to submitting a plumbing permit application.

 Apply for a Permit

Once you have reviewed the process outlined above and have gathered your required documentation, apply for your permit online using the buttons below.


Explore Permits, Approvals and Inspections


Contact Us

Department of Permits, Approvals and Inspections

County Office Building
111 West Chesapeake Avenue
Towson, Maryland 21204


Monday through Friday
8:30 a.m. to 4:30 p.m.



C. Pete Gutwald

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